摘要：

以掺入比作为垃圾渗滤液与城镇污水协同处理掺入量控制指标, 不能反映渗滤液水质变化, 导致出现协同处理不达标的问题。采用SBBR工艺, 以老龄化垃圾渗滤液与城镇生活污水为对象, 研究以进水氨氮负荷作为协同处理垃圾渗滤液掺入量的控制指标。结果表明, 氨氮负荷对协同处理效果影响显著, 当协同处理氨氮负荷为0.24 kg/(m³·d)时, 出水COD、NH₄⁺-N和TN均达到《城镇污水处理厂污染物排放标准》的一级A标准。以氨氮负荷为0.24~0.4 kg/(m³·d)控制老龄化渗滤液掺入量较适宜。

关键词: 协同处理, 氨氮负荷, 垃圾渗滤液, 城镇污水, 序批式生物膜反应器

Abstract:

Using the doping ratio as the control index of additive amount for the co-processing treatment of landfill leachate and urban sewage cannot reflect the change of leachate water quality, and result in the impossibility for the co-processing to reach the set standard. Aiming at the aged landfill leacheate and urban sewage, it is studied by SBBR process that ammonia nitrogen loading is used as the control index of additive amount of the co-processing treatment. The results show that the influence of ammonia nitrogen loading on co-processing treatment efficiency is remarkable. When the co-processing treated ammonia nitrogen loading is 0.24 kg/(m³·d), the effluent COD, NH₄⁺-N and TN can all reach the level 1A of the Discharge Standard of Pollutants for Urban Sewage Plant. The ammonia nitrogen loading in the range of 0.24-0.4 kg/(m³·d) is comparatively suitable for controlling the additive amount of aged landfill leachate.

Key words: co-processing treatment, ammonia-nitrogen loading, landfill leachate, domestic sewage, sequencing batch biofilm reactor

中图分类号: 

• X703.1